---
title: kCMIOHardwareIllegalOperationError
framework: Core Media I/O
role: symbol
role_heading: Global Variable
platforms: [Mac Catalyst 13.0+, macOS 10.7+]
path: coremediaio/kcmiohardwareillegaloperationerror
---

# kCMIOHardwareIllegalOperationError

## Declaration

```swift
var kCMIOHardwareIllegalOperationError: Int { get }
```

## See Also

### Constants

- [kCMIODevicePermissionsError](coremediaio/kcmiodevicepermissionserror.md)
- [kCMIODeviceUnsupportedFormatError](coremediaio/kcmiodeviceunsupportedformaterror.md)
- [kCMIOHardwareBadDeviceError](coremediaio/kcmiohardwarebaddeviceerror.md)
- [kCMIOHardwareBadObjectError](coremediaio/kcmiohardwarebadobjecterror.md)
- [kCMIOHardwareBadPropertySizeError](coremediaio/kcmiohardwarebadpropertysizeerror.md)
- [kCMIOHardwareBadStreamError](coremediaio/kcmiohardwarebadstreamerror.md)
- [kCMIOHardwareNoError](coremediaio/kcmiohardwarenoerror.md)
- [kCMIOHardwareNotRunningError](coremediaio/kcmiohardwarenotrunningerror.md)
- [kCMIOHardwareNotStoppedError](coremediaio/kcmiohardwarenotstoppederror.md)
- [kCMIOHardwareSuspendedBySystemError](coremediaio/kcmiohardwaresuspendedbysystemerror.md)
- [kCMIOHardwareUnknownPropertyError](coremediaio/kcmiohardwareunknownpropertyerror.md)
- [kCMIOHardwareUnspecifiedError](coremediaio/kcmiohardwareunspecifiederror.md)
- [kCMIOHardwareUnsupportedOperationError](coremediaio/kcmiohardwareunsupportedoperationerror.md)